The air conditioner was blowing cool, not cold air. It was found to be low of gas and is now recharged. Tech then tested at idle and temperature was 5deg C coming out for vent. Once I started driving AC went cool again. When I stopped and sat at idle AC was cold again.
Seems that about 80kph (2600rpm) AC gets warmer. This is a T430 115 (Motorhome) and I am thinking there simply is not enough power for both driving and running the compressor. Is there a cutout on the compressor when under load? Perhaps warm air is being forced into the system at speed even though the AC is set to recirculate. Any thoughts would be greatly appreciated.
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Air conditioner cold at idle, cool under load mk6
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Air conditioner cold at idle, cool under load mk6
by ShipAhoy » Fri Sep 28, 2018 5:21 am
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ShipAhoy - Newbie
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Re: Air conditioner cold at idle, cool under load mk6
by knobby1 » Fri Sep 28, 2018 5:51 am
ShipAhoy wrote:The air conditioner was blowing cool, not cold air. It was found to be low of gas and is now recharged. Tech then tested at idle and temperature was 5deg C coming out for vent. Once I started driving AC went cool again. When I stopped and sat at idle AC was cold again.
Seems that about 80kph (2600rpm) AC gets warmer. This is a T430 115 (Motorhome) and I am thinking there simply is not enough power for both driving and running the compressor. Is there a cutout on the compressor when under load? Perhaps warm air is being forced into the system at speed even though the AC is set to recirculate. Any thoughts would be greatly appreciated.
There's an "over-pressure and under-pressure" switch which may be kicking in.
Lord Knobrot
2008 2.4L RWD 170+PS 6-speed 350 LWB High Roof.
When I die, I want to go peacefully in my sleep like my Grandfather, not screaming like the passengers in his car..!
When I die, I want to go peacefully in my sleep like my Grandfather, not screaming like the passengers in his car..!
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Re: Air conditioner cold at idle, cool under load mk6
by Cider Andy » Sat Sep 29, 2018 7:44 pm
It sounds like the static system pressure is too high.
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Re: Air conditioner cold at idle, cool under load mk6
by ShipAhoy » Sun Sep 30, 2018 7:49 am
Thanks for the info. I will have it checked out.
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